The **M3EH24XPD-R** is a specific high-performance **Step-Servo Motor** (Integrated Stepper Motor and Driver) manufactured by **Leadshine**. It belongs to the M3 series, which utilizes 3-phase brushless technology combined with closed-loop control. --- ### 1. Core Technical Specifications The following table highlights the primary electronic and physical characteristics of this part: | Parameter | Specification | | :--- | :--- | | **Type** | Integrated 3-Phase Step-Servo | | **Input Voltage** | 24 - 50 VDC | | **Holding Torque** | 2.4 N.m (Newton-meters) | | **Encoder Resolution** | 1000 lines (4000 PPR) | | **Frame Size** | NEMA 24 (60mm) | | **Communication** | Pulse / Direction (PUL/DIR) | | **Control Mode** | Closed-loop (No loss of steps) | --- ### 2. Key Electronic Components & Features The "Integrated" nature of the M3EH24XPD-R means several electronic modules are housed in a single casing: #### A. Integrated Digital Driver Unlike traditional steppers that require a separate drive box, the electronics are mounted to the back of the motor. * **Vector Control:** It uses 32-bit DSP (Digital Signal Processing) to apply field-oriented control (FOC). * **Current Regulation:** Automatically adjusts current based on the actual load, which reduces motor heating and energy consumption. #### B. High-Resolution Encoder The "Closed-loop" functionality is driven by a built-in optical or magnetic encoder. * **Feedback Loop:** The driver constantly compares the target position with the actual position provided by the encoder. * **Error Correction:** If a position deviation occurs (due to sudden load changes), the electronics compensate instantly, eliminating the "lost steps" common in open-loop steppers. #### C. 3-Phase Motor Technology The motor itself is a 3-phase design rather than the standard 2-phase. * **Smoothness:** 3-phase motors generally offer lower torque ripple and quieter operation. * **High Speed:** They maintain higher torque at higher RPMs compared to 2-phase equivalents. --- ### 3. Wiring and Interface The unit typically features several connection points for electronic integration: 1. **Power Ports:** VDC and GND (typically 24-50V). 2. **Signal Ports:** * **PUL+/PUL-:** Pulse signal for speed/distance. * **DIR+/DIR-:** Direction signal. * **ENA+/ENA-:** Enable/Disable signal. 3. **Output Signals:** * **Fault Output:** An electronic signal (OC output) that triggers if the motor stalls or encounters an over-voltage/over-current state. * **In-Position Output:** Signals the controller when the motor has reached the target position. --- ### 4. Part Number Breakdown (M3EH24XPD-R) * **M3:** Leadshine 3-Phase Series. * **EH:** High-torque motor series. * **24:** 2.4 N.m Holding Torque. * **X:** Frame size/Configuration code. * **PD:** Integrated Driver with Pulse/Direction control. * **-R:** Specific revision or custom manufacturing code.